Fireproof window.



PATENTED APR. 25, 1905.

A. KoNsALIK.

FIRBPROOP WINDOW.

APPLICATION FILED SEPT. 26, 1904. Y

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hlll Illll Ill No. 788,267. PATENTED APR. 25, 1905. A. KONSALIK.

FIREPROOF WINDUW.

APPLICATION FILED SEPT. ze, 1904..

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UNITED STATES Patented April 25, 1905.

PATENT OEEICEO FIREPROOF WINDow.

SPECIFICATION forming part of Letters Patent No. 788,267, dated April 25, 1905. Application iiled September 26, 1904. Serial No. 225389.

To all whom t may concern.-

Be it known that I, ARTHUR KONSALIK, a subject of the Emperor of Germany, residing inthe city and county of Philadelphia, State of Pennsylvania, haveinvented a new and useful Fireproof Window, of which the following` is a specilication.

My invention consists of a window having f iireprooil sashes which may be opened and closed as usual, but which when opened will in the event of iire be automatically closed. To this end I employ a brake on the sash-pulley, the same being primarily controlled by a device of fusible material and a suitable tension for said brake, said tension being reduced or destroyed in the-event of tire due to the fusing or melting of said device employed, such action tending to release said brake and its control of the sash-pulleys.

Figure 1 is a front view of a fireproof window embodying my invention. Fig. 2 is a top or plan view of portion of the same on an enlarged scale. Fig. 3 is a Vertical section on line a' Fig. 2. Fig. 4 is a transverse section ofthe sash-pulleys and brake therefor. Fig. 5 is a perspective view of the fusible device employed. Fig. 6 is a transverse section on line g/ y, Fig. Q.

Similar letters of reference indicate corresponding parts in the iigures.

Referring to the drawings, A designates a window-frame, and B and C theI window-l sashes, the latter being made of iireproof material.

D designates the pulleys for the sash chains or cords E, the hubs F of which are encircled by the friction brake G, the latter being formed of a strap of metal or other suitable material of circular form, so as to embrace said hubs, the brake thus being common to the hubs of the pulleys, the ends of said strap being separated, one end being connected by the stirrups H with the bracket J, which' is connected with the side stile of the windowframe. Again, the end of the brake which occupies the thread of the bolt'K is within the stirrup H, and the other end of said brake is below said bolt, by which provision the ends of the brake G may be brought closely together, and almost the entire length of said brake may encircle the hubs of the sash-pulleys, so as to obtain the greatest effect in controlling the latter, and consequently the sashes, respectively, in their raising and lowering motions. The other end of said strap has connected with it the bolt K, to Whose head is attached the rod L, which in the present case ,extends over the lintel Al of the. window and has the end opposite the said bolt K connected with the series of leversMof the order oflazytongs, the side pivots of the latter having attached to them the rods N, portions of which outside of the window-frame carrying the yokes or saddles P,of fusible material,contact ing with which are the nuts Q on the threaded ends of said rods, whereby owing to said nuts said levers may be opened and closed and so set as to adjustably hold the brake Gr on the hubs F, it being noticed that the similar rod L is attached to the other end of said levers M so as to extend to the other side of the Window-frame, where sash-pulleys are provided with appurtenances similar to those shown on the right hand of Fig. 2. The yoke-s B are independent of said nuts Q, and may be readily slipped or iitted on the rodsN intermediate of said nuts and the adjacent lintel or corresponding portion of the window-frame, it being evident that the nut may be of ordinary nature, and so require no special construction for the purpose intended. It will also be noticed that the end of brake opposite to that engaged by the nut K is of the form of a hook, which is fitted onv the cross-bar of the stirrup H as a convenient and strong fastening for the brake with said stirrup, while the separated side arms of said stirrup form a space to receive threaded end of the bolt and said nut K thereon, thus rendering the parts compact while admitting of easy access to said nut for purposes of adjustment of the tension of the brake. On the bolt K is a nut K' to assist in nicely adjusting the tension of the brake G. The weight R of the upper sash is of such degree that its tendency is to raise said sash, while the weight S of the lowerV sash is light so as to be overcome by the weight of said lower sash; but owing to the friction of said brake G the sashes may be raised and lowered as usual and will retain the position IOO to which they are set, whether open or closed or partly7 so.

It will be seen that if the sashes are open and lire occurs the yokes P fuse or melt, thus releasing the nuts Q and rods N, when the levers M close, thus relieving the rods L of draft, and permitting the brake G to open. This releases the hubs-of the pulleys D immediately, whereupon the weights S of the lower sash C is overcome by the weight of said sash, when the sash lowers to its full extent. As the weight R is superior to the weight of the upper sash the latter is immediately raised to its full extent, and thus both sashes will be closed, in which condition, owing to their fireproof nature, fire is prevented from entering an apartment through the sashes or window, the effect of which is evident.

Various changes may be made in the details of construction shown withoutdeparting from the general spirit of my invention, and I do not, therefore, desire to belimited in each case to the same.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. In a window, a sash, a sash-pulley, a brake on the latter adapted to permit said sash to move under normal condition, a controller for said brake, a rod connected with 'said controller, a piece of fusible material supported on said rod and independent means for retaining said piece in position at the adjacent portion of the window-frame, said piece being intermediate of said means and an adjacent portion of the window-frame.

2. In a window, a sash, a sash-pulley, a brake on the latter adapted to permit said sash to move Linder normal condition, a holder for said brake, a rod connected with said holder, a nut on said rod, and a piece of fusible material rested on said rod intermediate of said nut and the adjacent `portion of the windowyframe.

3. In a fireproof window, a controlling device for a sash-pulley, a piece of fusible material, a support for said piece, the same loeing connected with a member of said device, and independent means on said support for retaining said piece thereon, said piece being interposed between said means and an adjajacent portion of a window-frame.

4. In a window, a sash, sash-pulleys, a brake engaging with the hubs of said pulleys and common to both, a lever, a connection between said lever and said brake and a fusible device connected with said lever. y

5. In a window, a sash, a plurality of sashpulleys, a brake engaging said pulleys and common to both, a stirrup connected with one end of said brake, and a fixed member, a bolt adjustably connected with the other end of said brake, a fusible device and a connection 

